SECURITY SYSTEM BY EMERGENCY BELL USING MULTI-CHANNEL COMMUNICATION METHOD BASED ON ETHERNET

The present invention relates to a crime prevention system using an emergency bell of an ethernet-based multi-channel communication method. In the crime prevention system including a plurality of emergency bells related with one embodiment of the present invention, each emergency bell includes: a user input part to receive first command information of a user; a microphone to receive first sound information generated in at least a part of the installed area; a control part determining whether the user is in an emergency situation or not, by using at least one of the first command information and the first sound information; an output part outputting information noticing the emergency situation according to the control of the control part; and a wireless communication part transmitting identification information, the first command information and the first sound information to the previously established outside. The plurality of emergency bells communicate along the ethernet which is a local area communication network of a bus structure method, and the identification information can be an identification address given to each of the plurality of emergency bells differently in order to classify the plurality of emergency bells. [Reference numerals] (1110) Wireless communication unit;(1112) Mobile communication module;(1113) Wireless internet module;(1114) Local area communication module;(1115) Location information module;(1120) Microphone;(1130) User input unit;(1150) Output unit;(1151) Display unit;(1152) Sound output module;(1153) Alarming unit;(1160) Memory;(1170) Interface unit;(1180) Control unit;(1190) Power supply unit